/*
 * Schema portal — visual parity with landscapearchive.org (Foundation site).
 * Tokens and primitives mirror landscapearchive-org/src/styles/global.css.
 */

:root {
  --paper: #f7f6f2;
  --paper-raised: #ffffff;
  --ink: #1c1f22;
  --ink-soft: #4a4f55;
  --ink-muted: #6b7178;
  --line: rgba(28, 31, 34, 0.12);
  --line-soft: rgba(28, 31, 34, 0.07);
  --accent: #3f5a4a;
  --accent-strong: #2c4436;
  --accent-tint: rgba(63, 90, 74, 0.08);
  --font-serif: 'Iowan Old Style', 'Palatino Linotype', 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --measure: 42rem;
  --page-max: 72rem;
  --radius: 10px;
  --radius-sm: 6px;
  --ok: #2c4436;
  --error: #9b2c2c;
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

h3 {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
}

p {
  margin: 0 0 1.1em;
}

a {
  color: var(--accent-strong);
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent);
}

.page {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.5rem);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 40;
  background: var(--accent-strong);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
}

/* Header ------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.1) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  min-height: 4.4rem;
  flex-wrap: wrap;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__logo {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--line-soft);
}

.site-header__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.site-header__word {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.site-header__word--strong {
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.2em;
}

.site-header__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.15rem;
  justify-content: flex-end;
}

.site-header__link {
  font-size: 0.86rem;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
}

.site-header__link:hover {
  color: var(--accent-strong);
}

.site-header__link.is-active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.site-header__archive-link {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  text-decoration: none;
  white-space: nowrap;
}

.site-header__archive-link:hover {
  color: var(--accent-strong);
}

/* Draft banner ------------------------------------------------------------ */

.draft-banner {
  background: var(--accent-tint);
  border-bottom: 1px solid var(--line-soft);
}

.draft-banner__inner {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding-block: 0.7rem;
}

.draft-banner__tag {
  flex-shrink: 0;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
}

.draft-banner__text {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* Schema context bar (portal home only) ----------------------------------- */

.schema-context-bar {
  background: var(--paper-raised);
  border-bottom: 1px solid var(--line-soft);
}

.schema-context-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding-block: 0.75rem;
}

.schema-context-bar__text {
  margin: 0;
  max-width: 52rem;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.schema-context-bar__cta {
  flex-shrink: 0;
}

/* Hero ------------------------------------------------------------------- */

.foundation-hero {
  padding: clamp(2rem, 5vw, 3.25rem) 0 clamp(1.5rem, 3vw, 2rem);
}

.foundation-hero__eyebrow {
  display: inline-block;
  margin: 0 0 0.8rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.foundation-hero__title {
  margin: 0;
  max-width: 22ch;
  text-wrap: balance;
}

.foundation-hero__lead {
  margin: 1rem 0 0;
  max-width: var(--measure);
  color: var(--ink-soft);
}

.foundation-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  margin: 1.35rem 0 0;
}

.foundation-hero__meta div {
  display: grid;
  gap: 0.2rem;
}

.foundation-hero__meta dt {
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.foundation-hero__meta dd {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink);
}

.foundation-hero__meta a {
  color: inherit;
  font-weight: 600;
}

.foundation-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.4rem;
}

/* Buttons ---------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.62rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #f4f6f3;
}

.btn--primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

/* Main content ----------------------------------------------------------- */

.foundation-wing__main {
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
}

.foundation-section {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid var(--line-soft);
}

.foundation-section h2 {
  margin: 0 0 1rem;
}

.foundation-section p,
.foundation-section li {
  color: var(--ink-soft);
}

.foundation-steps {
  margin: 0;
  padding-left: 1.2rem;
}

.foundation-steps li + li {
  margin-top: 0.55rem;
}

.foundation-steps strong {
  color: var(--ink);
}

.foundation-callout {
  padding: 1.35rem 1.5rem;
  background: var(--accent-tint);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.foundation-callout h2 {
  margin-top: 0;
}

.foundation-callout p {
  margin: 0;
}

.foundation-modules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.foundation-modules li {
  padding: 1rem 1.15rem;
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.foundation-modules a {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
}

.foundation-modules a:hover {
  color: var(--accent-strong);
}

.foundation-modules p {
  margin: 0.4rem 0 0;
  font-size: 0.92rem;
  color: var(--ink-muted);
}

.foundation-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .foundation-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.foundation-card {
  padding: 1.15rem 1.25rem;
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.foundation-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.foundation-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.foundation-links {
  margin: 0;
  padding-left: 1.1rem;
}

.foundation-links a {
  font-weight: 600;
}

.foundation-note {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

code {
  font-size: 0.88em;
  font-family: ui-monospace, 'Cascadia Code', monospace;
  color: var(--ink-soft);
}

/* Validate page ---------------------------------------------------------- */

.foundation-textarea {
  width: 100%;
  min-height: 280px;
  resize: vertical;
  padding: 1rem;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 0.85rem;
  line-height: 1.5;
}

.foundation-textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.foundation-result {
  padding: 1rem 1.15rem;
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 0.88rem;
  color: var(--ink-muted);
  white-space: pre-wrap;
}

.foundation-result p {
  margin: 0.2rem 0;
}

.foundation-result--idle {
  color: var(--ink-muted);
}

.foundation-result--ok {
  border-color: rgba(44, 68, 54, 0.35);
  background: var(--accent-tint);
  color: var(--ok);
}

.foundation-result--error {
  border-color: rgba(155, 44, 44, 0.35);
  background: rgba(155, 44, 44, 0.06);
  color: var(--error);
}

.foundation-validate-actions {
  margin-top: 1rem;
  align-items: center;
}

.foundation-check {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-right: auto;
}

.foundation-check input {
  accent-color: var(--accent-strong);
}

.foundation-example-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.foundation-example-picker select {
  min-height: 2.25rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-raised);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.82rem;
}

/* Footer ----------------------------------------------------------------- */

.site-footer {
  margin-top: 3rem;
  background: var(--accent-strong);
  color: #dfe6e0;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 2rem;
  padding-block: 3rem 2rem;
}

.site-footer__brand {
  color: #eef2ee;
  max-width: 24rem;
}

.site-footer__mark {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 6px;
}

.site-footer__name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin: 0.7rem 0 0.5rem;
  color: #ffffff;
}

.site-footer__licence {
  font-size: 0.82rem;
  line-height: 1.55;
  color: #c4cfc6;
  margin: 0;
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer__heading {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #9fb0a3;
  margin: 0 0 0.3rem;
}

.site-footer__col a {
  color: #dfe6e0;
  font-size: 0.88rem;
  text-decoration: none;
}

.site-footer__col a:hover {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 2rem;
  padding-block: 1.3rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__notice {
  max-width: 46rem;
  margin: 0;
  font-size: 0.74rem;
  line-height: 1.5;
  color: #a9b8ac;
}

.site-footer__copy {
  margin: 0;
  font-size: 0.74rem;
  color: #a9b8ac;
}

.site-footer a[rel~='license'] {
  color: #eef2ee;
}

@media (max-width: 860px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    padding-block: 0.7rem;
  }

  .site-header__nav {
    justify-content: flex-start;
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 520px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }
}